Active Listing  ·  24 days on market

5851 Parma St

Round Rock, TX 78665
$495,000
4 Bed 4 Bath 3,164 sqft $156/sqft Built 2015 0.18 acres 2-Car Garage Pool Siena Sec 21

Exceptional 3,164 sq ft single-family home built by CastleRock Communities in 2015, priced aggressively for a swift sale in Round Rock’s premier Siena subdivision and packed with high-value mechanical and outdoor upgrades. INTERIOR HIGHLIGHTS: 4 large bedrooms, 3.5 pristine baths, formal dining, and a private office space. Soaring high ceilings and a striking spiral staircase deliver immediate wow-factor upon entry. CHEF'S KITCHEN: Equipped with quartz/granite counters, beautiful cabinetry, and a seamless open flow into the primary living area. MECHANICAL UPGRADE: Offers ultimate peace of mind with a premium Carrier upstairs AC unit newly replaced and upgraded in July 2026 for optimal energy efficiency. UPSTAIRS LIVING: Features an open secondary living space/game room plus an additional closed media room perfect for movie nights. No carpet in common areas (hardwood and tile throughout). OUTDOOR OASIS: Giant tiled patio area with a custom outdoor gas line hookup. The massive backyard showcases established peach, pear, and cherry plum fruit trees lined beautifully along the fence, preserving an expansive open lawn perfect for play or a future pool. FINANCIAL & COMMUNITY PERKS: Enjoy an incredibly low monthly HOA of just $25 while retaining full access to Siena's resort-style Olympic pools, splash pads, parks, and trails. Highly competitive pricing for this square footage combined with major high-ticket upgrades makes this meticulously maintained, owner-occupied home the standout value in Siena. Schedule your tour today!

At $156/sqft, this home is 25% below the Round Rock active market average of $208/sqft, potentially representing value relative to comparable properties currently on the market. View Austin market report →

Location

5851 Parma St, Round Rock, TX 78665

Property Details

Price $495,000
Status Active Listing
Beds 4
Full Baths 3
Half Baths 1
Living Area 3,164 sqft
Lot Size 0.18 acres (7,875.65 sqft)
Year Built 2015
Garage 2 spaces
Stories ,
Type Residential · Single Family Residence
Subdivision Siena Sec 21
County Williamson
Zip Code 78665
$/sqft $156/sqft
Days on Market ,
HOA $75/Quarterly
Annual Tax Est. $10,596.26
Pool Yes
Waterfront ,
New Construction ,
MLS # ACT246530804
List Date September 14, 2026
Elementary School Veterans Hill
Middle School Hutto
High School Hutto
School District ,

Luke Allen (TREC #788149) has deep knowledge of Round Rock and surrounding markets. Whether you're buying, selling, or just researching comparable sales, reach out for a no-pressure conversation.

Schedule a Call →

Similar Homes on the Market in Round Rock

Comparable Listings Right Now

Homes currently for sale in Round Rock with similar bedroom count, size, and price range, giving you real-time context for how this property's asking price compares to the active market.

AddressList Price$/sqftBeds/BathsSqftDOMListed
3329 Guadalajara St
Paloma Lake Sec 17b
$499,000 $186 4 bd / 2 ba 2,686 sqft , 2026-09-18
1531 N Red Bud Ln #33
Chester Ranch Place
$499,900 $215 4 bd / 3 ba 2,326 sqft , 2026-05-01
1531 N Red Bud Ln #32
Chester Ranch Place
$499,900 $214 4 bd / 4 ba 2,331 sqft , 2026-05-01
5835 Parma St
Siena Sec 21
$499,990 $160 5 bd / 5 ba 3,130 sqft , 2026-07-30
5817 Minerva Cv
Siena Sec 20
$500,000 $153 5 bd / 3 ba 3,270 sqft , 2026-08-20

Source: ACTRIS MLS, live listings. Similar by ±1 bed, ±35% price, ±35% sqft. Contact Luke for a formal comparative market analysis.

Investment Analysis

Rental Income Potential

The numbers below use conservative Austin-market assumptions. They are estimates, not a guarantee. Actual rents vary by condition, timing, and management. Read our full Austin rental property guide →

Est. Monthly Rent
$2,376/mo
0.48% rule · conservative Austin est.
Gross Yield
5.76%
Annual rent ÷ purchase price
Cap Rate (est.)
3.46%
NOI after 40% vacancy + expenses
Down Payment
$99,000
20% conventional investment loan

Monthly Cash Flow Breakdown (20% down · 7.25% rate)

Estimated Gross Rent+$2,376
Principal + Interest−$2,701
Property Tax (~2.1% TX avg)−$866
Insurance (~0.5%)−$206
Est. Monthly Cash Flow $-1,397

At current rates and prices, many Austin luxury properties run neutral or slightly negative on pure cash flow, appreciation and equity paydown are the primary return drivers. BRRRR and off-market acquisitions can improve day-one cash flow. Learn about the BRRRR method in Austin →

Commute & Employment

Major Employers Near Round Rock, TX

Round Rock sits within commuting range of Austin's major tech, manufacturing, and corporate campuses. Approximate drive times from this area:

Dell Technologies HQ 5 min
Apple Campus (Domain) 15 min S
Samsung Austin Semiconductor 20 min SW
Tesla Gigafactory 35 min S

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About the Author
Luke Allen, Austin TX Realtor, TREC #788149
Luke Allen
Licensed Austin TX Realtor · TREC #788149 · Full-time since 2019
★★★★★ 5.0 on Google · 30 Reviews

Luke Allen is a full-time Austin TX Realtor with the Austin Marketing + Development Group brokerage. He works with buyers, sellers, and investors across every Austin ISD and the surrounding neighborhoods, from Downtown and East Austin to Round Rock, Cedar Park, and the Hill Country. Every page on this site is written and maintained by Luke. This page was last updated on September 16, 2026.

📞 (254) 718-2567 [email protected] More about Luke →